CN1065043C - Layered heat exchanger - Google Patents
Layered heat exchanger Download PDFInfo
- Publication number
- CN1065043C CN1065043C CN931170745A CN93117074A CN1065043C CN 1065043 C CN1065043 C CN 1065043C CN 931170745 A CN931170745 A CN 931170745A CN 93117074 A CN93117074 A CN 93117074A CN 1065043 C CN1065043 C CN 1065043C
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- Prior art keywords
- groove
- flat tube
- mentioned
- corrugated fin
- heat exchanger
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 45
- 239000003507 refrigerant Substances 0.000 claims description 62
- 239000012530 fluid Substances 0.000 claims description 23
- 230000015572 biosynthetic process Effects 0.000 claims description 10
- 230000002093 peripheral effect Effects 0.000 claims description 4
- 238000011144 upstream manufacturing Methods 0.000 claims description 4
- 238000007599 discharging Methods 0.000 claims description 2
- 239000002826 coolant Substances 0.000 abstract description 3
- 238000005192 partition Methods 0.000 abstract 1
- 210000001503 joint Anatomy 0.000 description 10
- 238000005476 soldering Methods 0.000 description 7
- 230000005494 condensation Effects 0.000 description 6
- 238000009833 condensation Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 4
- 238000007493 shaping process Methods 0.000 description 4
- 238000005219 brazing Methods 0.000 description 3
- 239000000945 filler Substances 0.000 description 3
- 230000008676 import Effects 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 230000003321 amplification Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000001704 evaporation Methods 0.000 description 2
- 230000008020 evaporation Effects 0.000 description 2
- 238000003199 nucleic acid amplification method Methods 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 230000005514 two-phase flow Effects 0.000 description 2
- 208000019901 Anxiety disease Diseases 0.000 description 1
- 230000036506 anxiety Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- JEGUKCSWCFPDGT-UHFFFAOYSA-N h2o hydrate Chemical compound O.O JEGUKCSWCFPDGT-UHFFFAOYSA-N 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000003643 water by type Substances 0.000 description 1
Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F17/00—Removing ice or water from heat-exchange apparatus
- F28F17/005—Means for draining condensates from heat exchangers, e.g. from evaporators
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/00321—Heat exchangers for air-conditioning devices
- B60H1/00342—Heat exchangers for air-conditioning devices of the liquid-liquid type
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/32—Cooling devices
- B60H1/3204—Cooling devices using compression
- B60H1/3227—Cooling devices using compression characterised by the arrangement or the type of heat exchanger, e.g. condenser, evaporator
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/32—Cooling devices
- B60H1/3233—Cooling devices characterised by condensed liquid drainage means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B39/00—Evaporators; Condensers
- F25B39/02—Evaporators
- F25B39/022—Evaporators with plate-like or laminated elements
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D1/00—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators
- F28D1/02—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid
- F28D1/03—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with plate-like or laminated conduits
- F28D1/0308—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with plate-like or laminated conduits the conduits being formed by paired plates touching each other
- F28D1/0325—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with plate-like or laminated conduits the conduits being formed by paired plates touching each other the plates having lateral openings therein for circulation of the heat-exchange medium from one conduit to another
- F28D1/0333—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with plate-like or laminated conduits the conduits being formed by paired plates touching each other the plates having lateral openings therein for circulation of the heat-exchange medium from one conduit to another the plates having integrated connecting members
- F28D1/0341—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with plate-like or laminated conduits the conduits being formed by paired plates touching each other the plates having lateral openings therein for circulation of the heat-exchange medium from one conduit to another the plates having integrated connecting members with U-flow or serpentine-flow inside the conduits
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D21/00—Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
- F28D2021/0019—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for
- F28D2021/008—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for for vehicles
- F28D2021/0085—Evaporators
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The stacked heat exchanger of the present invention has a structure wherein grooves are brazed together to seal the external surface of the coolant passage, further grooves are brazed together to form a partition between the straight incoming and outgoing flow passages, and at least one groove in the straight incoming and outgoing flow passage section which groove runs in parallel with the grooves earlier mentioned is formed on the formed plates. With this structure, drain water flows down promptly through these grooves and the splashing of the drain water into the downstream area of the heat exchanger can be prevented.
Description
The present invention relates to the layered heat exchanger of use in refrigeration system, particularly can be used as the air conditioner for automobile evaporimeter, can make its surperficial condensed water flow down the layered heat exchanger that prevents that it from dispersing to the evaporimeter downstream side rapidly.
With reference to Figure 16, Figure 17 explanation layered heat exchanger in the past.Figure 16 is the side view of layered heat exchanger in the past, and Figure 17 is the amplification skiagraph of right side part among Figure 16.
Among Figure 16, Figure 17,1 is flat tube, and flat tube 1 is that plate 2 butt joint by two drawings forms.End (upper end among the figure) at flat tube 1 forms inlet slot part 3.
Flat tube 1 is alternately laminated with corrugated fin 4, and gateway slot part 3 is connected to each other, and constitutes layered heat exchanger (evaporimeter) 5.
The outside that is positioned at the flat tube 1a at two ends is an end plate 6, has opening 7 on the end plate 6 in gateway slot part 3.Opening 7 on one side is connected with importing pipe arrangement 8 as the refrigerant of fluid, and the opening 7 of another side is connected with the discharge pipe arrangement 9 of refrigerant.
With reference to Figure 18 flat tube 1 is described.Figure 18 shows the front of the plate 2 that constitutes flat tube 1.
Hollow bulb in the plate 2 is separated into 2 chambers 16,17 by the spaced walls 15 that the above-below direction along central portion extends.One section of the lower end shortage of spaced walls 15 makes refrigerant do the U-shaped turning point 18 of u turn in the formation of the lower end of plate 2.After two plate 2 butt joints, spaced walls 15 is separated into inlet portion 11 and export department 12 with gateway slot part 3, is separated out chamber 16 that communicates with inlet portion 11 and the chamber 17 that communicates with export department 12 simultaneously.Chamber 16 and chamber 17 are connected in U-shaped turning point 18, and chamber 16,17 and U-shaped turning point 18 form fluid passage.
Be equipped with many ribs 19 in chamber 16,17, this rib 19 is subdivided into labyrinth-like with chamber 16,17.Be equipped with guiding rib 20 in U-shaped turning point 18, the flowing of refrigerant by guiding rib 20 guiding, 16 do u turn to chamber 17 from the chamber.
With reference to Figure 20 flowing of refrigerant in the above-mentioned evaporimeter 5 is described, Figure 20 represents the flow condition of refrigerant.
In vis-a-vis the gateway slot part 3, the export department 12 of group 21 is communicated with the inlet portion 11 of organizing 22 between group 21 and group 22 and between group 22 and the group 23, organizes 22 export department 12 and is communicated with the inlet portion 11 of organizing 23.The opening 7 of group 21 inlet portion 11 by end plate 6 with import pipe arrangement 8 and be connected, the opening 7 that the export department 12 of group 23 passes through plate 6 is connected with discharge pipe arrangement 9.
Import the refrigerant 31 of evaporimeters 5 from importing pipe arrangement 8, be sent to U-shaped turning point 18 by chamber 16, after u turn is done in U-shaped turning point 18, be sent to export department 12 by chamber 17 from organizing 21 inlet portion 11.The refrigerant 31 that is sent to group 21 export departments 12 is sent to group 22 inlet portion 11 again, do with group 21 in be sent to group 23 after same the flowing, discharge from discharging pipe arrangement 9 by organizing 23 fluid passage (chamber 16,17, U-shaped turning point 18).
During this, air 32 is delivered between the corrugated fin 4, utilizes the evaporation latent heat of refrigerant 31, and air 32 is cooled, and the plat part of corrugated fin 4 separates air flue up and down.
With reference to Figure 19 corrugated fin 4 is described, the A-A line cutaway view that amplifies among Figure 19 (a) expression Figure 16.
On the plat part 4a of corrugated fin 4, along the many louvers of flow direction (above-below direction among the figure) the formation slit 75 of air, louver slit 75 is distinguished by each determined number and is formed louver slit group 76.The exchange that is taken into air between each air flue of Fen Geing is undertaken by louver slit 75 up and down.
Above-mentioned evaporimeter 5 reduces the temperature of air 32 and dehumidifies below dew-point temperature, then becomes inner face dewfall at the upper surface and the end plate 6 of flat tube 1 when following when air 32 arrives dew-point temperatures.Particularly in the bottom of air 32 downstream sides, the condensed water that flows down mixes, and condensed water accumulates, and hinders heat exchange.
In the above-mentioned layered heat exchanger, with the raising of its heat-exchange capacity, condensation water quantity also increases.
In such layered heat exchanger, the groove that is formed by spaced walls 15 is present in the outer surface of flat tube 1, though under these groove energy direct condensed current, but only depend on this groove also to be not enough to the condensed water water yield under the directed flow, condensation flow goes out corrugated fin 4 sides, water droplet is dispelled rearward under the effect of air stream, promptly produces the so-called globule phenomenon of dispersing.In addition, on each plate 2 spaced walls 15 is arranged, the degree of depth of groove is half of flat tube 1 thickness, therefore, and fully under the direct condensed current.
Outer surface at flat tube 1, the groove of part that the spaced walls 15 of compartment 16,17 is arranged, part at flat tube 1, though the condensed water of dewfall flows to foot along this groove easily, but the groove that on the inner peripheral surface of side plate 6, does not have direct condensed water, so be easy to generate the globule phenomenon of dispersing at the inner peripheral surface of side plate 6.
On wave-shaped fins 4, in order to improve heat-transfer effect, generally be formed with louver slit 75, shown in Figure 19 (a), louver slit 75 is distinguished by each determined number and is formed louver slit group 76.But, shown in Figure 19 (b), on the plat part 4a of wave-shaped fins 4, the width L of non-louver slit forming section 77 is bigger than the width l of louver slit group 76, what contact with the plate 2 of flat tube 1 has only non-louver slit forming section 77, therefore, produce not soldering part, have the bad problem of soldering in the part of louver slit group 76.
The objective of the invention is to solve the above problems.In order to realize these purposes, layered heat exchanger of the present invention is to be formed with flat ware shape portion respectively and to be formed with than this dark refrigerant inlet of ware shape portion at an end of this ware shape portion a pair of.The forming board of outlet slot part docks mutually, between this is to forming board, form to make the cryogen flow that flows into from the refrigerant inlet slot part to the reciprocal direct flow road of refrigerant outlet slot part with form the U word shape refrigerant circuits that constitutes by semicircle shape turning stream, the refrigerant tube and the corrugated fin alternate multiple that will insert the waveform shaping plate in above-mentioned direct flow road are stacked, have side plate as exterior panel in the both sides of stack direction, it is characterized in that, be formed with: the groove of mutual soldering and airtight above-mentioned refrigerant tube periphery, mutual soldering also forms the groove at interval between the above-mentioned reciprocal direct flow road and the groove on above-mentioned direct flow road that at least one is parallel with these grooves.
Like this, in the present invention, these grooves can be so that condensed water flows down rapidly, thereby prevents that condensed water heat exchanger downstream side from dispersing.
In addition, in order to address the above problem, layered heat exchanger of the present invention is the plate butt joint formation flat tube with two drawings, this flat tube and corrugated fin multilayer is alternately stacked, be provided with side plate as exterior panel in the both sides of stack direction, it is characterized in that, on the medial surface of above-mentioned side plate, form groove along the vertical direction, be convex at lateral surface.Like this, in the present invention, because the effect of this groove can make the condensed water of side plate medial surface promptly flow down.
Its result, condensed water can not be trapped in the medial surface of side plate, so just can not dispelled the rear by air, can not form the globule and disperse, simultaneously because this groove is convex on lateral surface, so improved the rigidity of side plate.
In addition, in order to address the above problem, layered heat exchanger of the present invention is that the plate butt joint of two drawings is formed flat tube, this flat tube and wave-shaped fins 4 multilayers is alternately stacked, flat part at above-mentioned corrugated fin 4, flow direction along air forms many louvers slit, there is not non-louver slit forming section, make said louver slit form the louver slit group of plurality of separate, it is characterized in that, separate at above-below direction under the state of flat tube fluid passageway, form the spaced trenches of protruding to the fluid passage side at the outer surface of this flat tube, the non-louver slit forming section and the corresponding configuration of the above-mentioned spaced trenches of flat tube of above-mentioned corrugated fin.Like this, in the present invention, the broad portion of non-louver slit forming section does not contact with plate at the spaced trenches place of plate, and the position of louver slit group is line with plate and contacts, and just can not produce not soldering portion.Its result, the fibre that improves flat tube and corrugated fin welds precision, eliminates the bad anxiety of brazing filler metal, and simultaneously, this spaced trenches makes the condensed water on flat tube surface discharge rapidly.
In addition, in order to address the above problem, layered heat exchanger of the present invention is that a pair of forming board butt joint is formed flat tube, end at this buttcover plate is provided with the stream socket slot part, at least be provided with one or more groove along the vertical direction at the central part outer surface that forms fluid passage, with this flat tube and corrugated fin alternative stacked, between the outer surface of flat tube and corrugated fin, form condensed water by above-mentioned groove and discharge groove; It is characterized in that form recess on any a slice plate of above-mentioned a pair of forming board, this recess has the degree of depth with another sheet forming board inner face butt, forms above-mentioned groove.
As mentioned above, owing to formed groove under the direct condensed current, among the present invention, guarantee to form the groove with the roughly the same degree of depth of flat tube thickness, effectively under the direct condensed current.
Again, in order to address the above problem, layered heat exchanger of the present invention is that a pair of forming board butt joint is formed flat tube, at this end the stream socket slot part is set to forming board, at the central part outer surface that forms fluid passage, at least one or more groove along the vertical direction is set, and with this flat tube and corrugated fin alternative stacked, above-mentioned groove forms condensed water and discharges groove between flat tube outer surface and wave-shaped fins; It is characterized in that,, cut apart above-mentioned corrugated fin, forms condensed water discharge groove by the cutting part and the above-mentioned groove of this corrugated fin facing to the position of above-mentioned groove.Like this, in the present invention, corrugated fin can not hinder under the groove direct condensed current.
In addition, in order to address the above problem, lamination-type heat exchange of the present invention is to being connected into flat tube with a pair of forming board, at this end the stream socket slot part is set to forming board, outer surface at the central part that forms the fluid road, one or more groove along the vertical direction is set at least, and with this flat tube and corrugated fin alternative stacked, above-mentioned groove forms condensed water and discharges groove between the outer surface of flat tube and corrugated fin; It is characterized in that, width at flat tube is provided with some above-mentioned grooves, and the width of each groove is gradually wide in turn to downstream side from the upstream side of air stream, like this, even the condensed water at air stream downstream side increases, by the condensed water under the groove directed flow can spout yet outside.
With reference to the accompanying drawings, the embodiment of the invention is described.
Fig. 1 is the side view of one embodiment of the invention layered heat exchanger.
Fig. 2 is the exploded perspective view of the refrigerant tube of the present invention the 1st embodiment.
Fig. 3 is the cross-sectional view of refrigerant tube when assembled state among Fig. 2.
Fig. 4 is the coolant tubes exploded perspective view of the present invention the 2nd embodiment.
Fig. 5 is the cross-sectional view of coolant tubes when assembled state among Fig. 4.
Fig. 6 is the enlarged drawing of X part among Fig. 5.
Fig. 7 is the skiagraph of the refrigerant tube of the present invention the 3rd embodiment.
Fig. 8 is the refrigerant tube among Fig. 7 and the stereogram of air side fins assembled state.
Fig. 9 is along the cutaway view of arrow III among Fig. 1.
Figure 10 is the B-B line cutaway view among Fig. 9.
Figure 11 is the enlarged drawing of the mark V portion among Fig. 1.
Figure 12 is the III-III line cutaway view among Fig. 1.
Figure 13 is the exploded perspective view of flat tube.
Figure 14 is the exterior view on composition surface of the plate of expression flat tube.
Figure 15 is a C-C line cutaway view among Fig. 1.
Figure 16 is a layered heat exchanger side view in the past.
Figure 17 is the right side amplification profile diagram among Figure 16.
Figure 18 is the front elevation of the plate of flat tube.
Figure 19 is the A-A line cutaway view among Figure 16.
Figure 20 is the flow of refrigerant situation key diagram of layered heat exchanger.
Fig. 1 represents the side view of the layered heat exchanger of one embodiment of the invention, and Fig. 2 represents the exploded perspective view of flat tube, and Fig. 3 represents the cross-sectional view of the flat tube assembled.
Among the figure, 81 is flat tube, and flat tube 81 is formed by plate 82 butt joints of two drawings.End (upper end among the figure) at flat tube 81 forms inlet slot part 83.Flat tube 81 and corrugated fin 84 alternative stacked, gateway slot part 83 are connected to each other and constitute layered heat exchanger (evaporimeter) 85.
Be positioned at the outside of the flat tube 81a at two ends, setting end plate 86, have opening 87 on the end plate 86 in the gateway slot part 83.Opening on one side 87 connects refrigerant inlet case 88, and the opening 87 of another side connects the EXPORT CARTON 89 of refrigerant.Setting corrugated fin 84 in the outside of end plate 86,, installing side plate 90 respectively in the outside of each corrugated fin 84.
The following describes the structure of flat tube 81.
Among Fig. 2 and Fig. 3, the 82nd, a pair of forming board, the 83rd, the gateway slot part that forms at the forming board top of with groove.46, the 47, the 67th, the parallel groove that on each forming board 82, forms.This forming board 82 and the difference of forming board 2 in the past are to add the groove parallel with these grooves 67 between the groove 15 that in the past plate also is provided with.The 52nd, when assembling, be contained in the waveform shaping plate between the forming board 82, this waveform shaping plate 52 is provided with 4.
In this device, condensed water can flow down from the groove 46,47,67 of forming board 82 and the gap between the air side fins 84.Like this, the condensation water quantity that flows through air side fins reduces, and reduces dispersing from the water of the rear flow side of evaporator air stream.The quantity of above-mentioned groove 67 also can increase, and this is not particularly limited.
Fig. 4 is the exploded perspective view of the refrigerant tube among the present invention the 2nd embodiment, and Fig. 5 is the cross section of refrigerant tube that each one shown in Figure 4 is assembled, and Fig. 6 is the enlarged drawing of the X portion of Fig. 5.
Among the figure, 82b is a pair of forming board with the roughly same shape of the 1st embodiment, the 46,47, the 67th, and the parallel groove that on this forming board, forms.52b is installed in wave mode forming board between the forming board when assembling.In the present embodiment, though refrigerant circuits has reciprocal 4, from Fig. 5, Fig. 6 as seen, wave mode forming board 52b has only two, and this is because a slice waveform shaping plate 52b straddles two causes in the refrigerant circuits.Like this, can reduce the quantity of parts.In addition, can also form more groove and make more refrigerant circuits, employing can straddle the wave mode forming board on these streams.Present embodiment make the effect under the condensation flow identical with the 1st embodiment.
Fig. 7 is the vertical section of the refrigerant tube among the present invention the 3rd embodiment, and Fig. 8 is the stereogram of this refrigerant tube and air side fins assembled state.
Among the figure, 82c is a forming board, the 46,47, the 67th, and groove, the 83rd, slot part, the 50th, the refrigerant turning groove that refrigerant is used do u turn, the 70th, cryogen flow, h
1Scope be the u turn portion of refrigerant.In this forming board, a groove in left and right sides groove 67 and the refrigerant turning groove 50 forms continuously, and this point is and the different place of the 1st, 2 embodiment.
Among the figure, h
2Scope represent the scope of the foot downside of above-mentioned continuous refrigerant turning groove.
Among Fig. 8,52c is the wave mode forming board, and 82c, 52c are respectively forming board, the wave mode forming boards of any shape among the 1st or the 2nd embodiment.The 84th, air side fins, the 60th, condensation flow, the 61st, air stream (Fig. 7).
In this device, the condensed water 60 that accumulates in the groove 67 flows down in groove 67.The condensed water 60 that flows down in the refrigerant groove 50 that refrigerant u turn portion flows to above-mentioned groove 67 links to each other, the height h in its bottom
2The position flow out air side fins 84, the part in the condensed water 60 of outflow flows into a refrigerant u turn groove that is positioned at downside again, flows out to next air fin again.Also do same flowing in the refrigerant u turn groove of its downside, condensed water 60 flows to more lower position place like this.Therefore, the whole condensed waters 60 that flow to groove 67 are got back to the position of air side fins 84, are the height of hypomere refrigerant u turn groove lower end, and the possibility that condensed water 60 flows to the air rear flow side of evaporimeter always becomes very little.Therefore, in this device, reduced water and dispersed from the air stream rear flow side back of evaporimeter.
Below, with reference to the structure of Fig. 9,10 explanation side plates 90, Figure 10 is the B-B sectional drawing of Fig. 9.
To shown in Figure 10, on the medial surface of side plate 90, form 3 grooves 91 that extend along the vertical direction, are convex at lateral surface as Fig. 9.Under the condensation flow of these 3 grooves, 91 guiding side plates, 90 medial surfaces.
As shown in Figure 9, several through holes 92 are arranged on side plate 90, the diameter of the through hole 92 of below increases gradually.The condensed water of side plate 90 inner peripheral surfaces is to be discharged to the outside from through hole 92.This hole 92 also can be microscler.
Because groove 91 and through hole 92 are set on side plate 90, the condensed water of side plate 90 inboards is discharged to the outside from through hole 92 simultaneously by under groove 91 directed flow, so condensed water can not flow to the rear flow side of air.
The top state of side plate 90 is described with reference to Fig. 1 and Figure 11.The magnifying state of the V portion in Figure 11 presentation graphs 1.
The section of EXPORT CARTON 89 is slightly rectangular, is connected with the opening 87 of end plate 86.In the upper end of side plate 90, the front end of horizontal part 93 is bonded on the end plate 86.
Be contact condition above the following and horizontal part 93 of EXPORT CARTON 89, be bonded together by brazing filler metal mutually.
Because EXPORT CARTON 89 and side plate are bonded together, during pressurization, the distribution pressure that is added on the gateway slot part 83 is born by side plate 90, suppresses the distortion of evaporimeter 85.Owing on side plate 90, be provided with the groove 91 that is convex at lateral surface,, can suppress distortion conscientiously so enough intensity is arranged.
The central part of evaporimeter 85 is because plate 82 engages by waveform inner fin 52,52, so brazing filler metal portion is many, the intensity of gateway slot part 83 and the intensity of central part have very big poor.Therefore, when pressure added, central part and gateway slot part 83 produced very big poor aspect deflection.But, owing to EXPORT CARTON 89 is engaging with side plate, so, even the evaporimeter of intensity difference 85 also can suppress distortion fully.
Though the junction surface of Figure 11 expression EXPORT CARTON 89 and side plate 90, but inlet tank 88 is identical shaped with EXPORT CARTON 89 also, also is same structure with the junction surface of side plate 90.
Above-mentioned evaporimeter 85, because the top of following and side plate 90 of inlet tank 88 and EXPORT CARTON 89 engages, so the power that is added in the propagation direction on the gateway slot part 83 can be born by side plate 90, can be suppressed at the distortion that central part and gateway slot part 83 have the evaporimeter 85 of very big intensity difference.
In addition, owing to do not have the gap between inlet tank 88 and EXPORT CARTON 89 and side plate 90, do not leak so can not produce air, heat exchange performance can not reduce.
Figure 12 represents the 4th embodiment, is equivalent to the C-C line cutaway view among Fig. 1.
As shown in figure 12, on the plat part of corrugated fin 84, form many louvers slit 95 along air-flow direction (above-below direction among the figure), formation louver slit group 96 is separated by each determined number in this louver slit 95.It between louver slit group 96 and the louver slit group 96 non-louver slit forming section 97.Corrugated fin 84 is provided between the flat tube 81, groove 47,67 correspondences of its non-louver slit-shaped portion 97 and plate 82.
In the above-mentioned evaporimeter 85, air flue is separated up and down by the plat part of corrugated fin 84, and the air that is taken between each air flue exchanges by louver slit 95.
The width of the non-louver slit forming section 97 of corrugated fin 84 is bigger than the width of louver slit group 96, and non-louver forming section 97 is configured on the position corresponding with the groove 47,67 of plate 82, so the position of louver slit group 96 contacts with plate 82.Therefore, corrugated fin 84 and contacting of flat tube 81 are the line contacts, can not produce not soldering portion, and groove 47,67 has the function that the condensed water that makes flat tube 81 and corrugated fin 84 surfaces flows down rapidly.
Figure 13 is the exploded perspective view of the flat tube of the present invention the 5th embodiment, and Figure 14 is the front elevation on the composition surface of the expression plate that constitutes flat tube, and Figure 15 is the C-C line cutaway view among Fig. 1.
As shown in figure 13, flat tube 81 is formed by plate 82 butt joints of two drawings.One end of flat tube 81 (upper end among the figure) forms inlet slot part 83.
As shown in Figure 1, flat tube 81 and corrugated fin 84 alternative stacked, gateway slot part 83 is connected to each other, and constitutes layered heat exchanger (evaporimeter) 85.
At the plate width direction of flat tube 81, gateway slot part 83 is separated into inlet portion 44 and export department 45, when constituting evaporimeter 85, interconnects by intercommunicating pore 46 between the adjacent inlet portion 44 and between the export department 45.
As Figure 13, shown in Figure 14, the hollow bulb in the plate 82 is separated into two chambers 48,49 by the spaced walls 47 of extending along the vertical direction.One section of the lower end shortage of spaced walls 47, the lower end of plate 42 becomes the U-shaped turning point 50 that makes fluid refrigerant do u turn.After 82 butt joints of two plates, spaced walls 47 is divided into inlet portion 44 and export department 45 with gateway slot part 83, is separated out chamber 48 that communicates with inlet portion 44 and the chamber 49 that communicates with export department 45 simultaneously.Chamber 48 and chamber 49 be 50 connections in the U-shaped turning point, and chamber 48,49 and U-shaped turning point 50 form fluid passages 51.
Part (straight line portion) in the chamber 48,49 of fluid passage 51 is inserted waveform inner fin 52,53.As shown in figure 15, on waveform inner fin 52,53, form some waveform 52a along its length, 53a, these waveforms 52a, 53a form some be separated into section, along the chamber stream 54,55 of 48,49 length directions.
In the U-shaped turning point of fluid passage 51, form and somely be used to guide refrigerant to make the U word shape stream 56 that is separated into section of u turn.U word shape stream 56 is formed by some U word shape flanges 57 of drawing on plate 2 interfaces, and U word shape stream 56 is along the U font of plate 82 shapes.
When refrigerant flows between chamber 48,49, flowing refrigerant in the stream 54,55 in the flat tube 81 widths outside, the U word shape stream 56 in 50 outsides, U-shaped turning point of flowing through.Flowing refrigerant in the stream 54,55 of flat tube 81 width inboards, the U word shape stream 56 of 50 inboards, U-shaped turning point of flowing through.That is to say that the refrigerant of flat tube 81 is to flow to the inboard from the inboard, flow to outside ground from the outside and flow fluid passage 51.
To shown in Figure 15, in the chamber 48 of plate 82, form prominent wall 67 as Figure 13, this prominent wall 67 extends abreast with spaced walls 47, in the outer surface side formation concave channels 71 of plate 82.The height (degree of depth of groove 71) of prominent wall 67 is for when a pair of plate 82 engages, and prominent wall 67 can touch the inner face of chamber 49.
As shown in figure 15, the width H of the groove 71 in the downstream side of air stream (below among the figure) is wideer than the width h of the groove 71 in the upstream side (top among the figure).That is, flat tube 81 is that two kinds of plates, 82 butt joints by the prominent wall 67 of the different in width that is being shaped form.
And for example shown in Figure 15, at the plat part of wave-shaped fins 84, be formed with louver slit 95 along the flow direction of air, the exchange that is taken into air in each air flue of being separated is up and down undertaken by louver slit 95.Corrugated fin 84 is divided into fin 84a according to the groove position that groove 71 and prominent wall 47 form, 84b, and 84c, 84d forms cutting part 98.Groove and cutting part 98 places in groove 71 and prominent wall 47 formation form condensed water and discharge groove 99.
In the above-mentioned evaporimeter 85, as the refrigerant of fluid from inlet portion 44 inflows of flat tube 81, be directed to U-shaped turning point 50 by the stream 54 that is divided into by waveform inner fin 52, in the U word shape stream 56 that is divided into by U word shape flange 57, do u turn, flow to export department 45 by the stream of dividing by waveform inner fin 53 55 more always.The example that one of flows of refrigerant and air is identical with situation shown in Figure 20 in the evaporimeter 85 that flat tube 81 and corrugated fin 84 alternative stacked form.
Flowing refrigerant in flat tube 81, stream 54,55 that is divided because flow through and U word shape stream 56, refrigerant flows to inboard from the inboard of fluid passage 51, flow to the outside from the outside, so, the separation of the gas-liquid two-phase flow refrigerant that is produced by the centrifugal force of U-shaped turning point 50 only occurs in the U word shape stream 56, and the distribution of the gas-liquid sendout of two-phase flow refrigerant reduces.In addition, because the U word shape stream 56 of U-shaped turning point 50 is along the U font of plate 82 shapes, so flowing of refrigerant can not produce stagnation.
Therefore, the distribution of the gas-liquid sendout of refrigerant reduces, and the thermal efficiency that be difficult for to take place to cause because of bias current reduces, and it is inhomogeneous can not produce the heat exchange amount that the stagnation because of flow of refrigerant causes.
When refrigerant flowed in flat tube 81, air was sent between the corrugated fin 84, utilized the evaporation latent heat of refrigerant to make the air cooling.
In the above-mentioned evaporimeter 85, the groove 71 of flat tube 81 forms on the chamber 84 of on one side plate 81, and its degree of depth contacts with chamber 49 inner faces of the plate 82 of another side, so guarantee that the thickness of the degree of depth of condensed water discharge groove 99 and flat tube 81 is roughly the same.
In addition, in above-mentioned evaporimeter 85, in the groove 71 of flat tube 81, to flow the width of groove 71 of upstream side big than being positioned at air to be positioned at the width H of groove 71 of air stream downstream side, so even increase at the condensed water of air stream downstream side, condensed water can not flow out condensed water drain tank 99 yet.
In addition, in above-mentioned evaporimeter 85, cut apart corrugated fin 84 according to the groove 71 of flat tube 81 and the groove position of prominent wall 47 formation, groove and cutting part 98 places in groove 71 and prominent wall 47 formation form condensed water discharge groove 99, so condensed water is by the obstruction that is not subjected to corrugated fin 84 under the groove directed flow.
Claims (8)
1. layered heat exchanger, be that a pair of forming board is docked mutually, this is to being formed with flat ware shape portion respectively and at the dark refrigerant gateway slot part of ratio ware shape portion of this ware shape portion one end on the forming board, the U word shape refrigerant circuits that the feasible cryogen flow that flows into from above-mentioned refrigerant inlet slot part of formation is made of semicircle shape turning stream with formation to the reciprocal direct flow road that exports slot part between this is to forming board, the refrigerant tube and the wave-shaped fins alternate multiple that are inserted with the wave mode profiled sheeting in the direct flow road is stacked, be provided with side plate in the both sides of stack direction, on above-mentioned a pair of forming board, be formed with and engage one another and the groove of airtight above-mentioned refrigerant tube peripheral part as exterior panel, engage one another and form the groove at the interval between above-mentioned reciprocal direct flow road and at least one parallel with these grooves, groove at position, above-mentioned direct flow road; It is characterized in that:
Turning stream portion in above-mentioned U word shape refrigerant circuits is formed with the spaced trenches that this part is divided into some streams, and at least one groove that forms on above-mentioned direct flow road simultaneously and the spaced trenches of this turning stream are continuous.
2. layered heat exchanger as claimed in claim 1, it is characterized in that: with the plate of two drawings to being connected into flat tube, this flat tube and corrugated fin alternate multiple is stacked, be provided with side plate as exterior panel in the both sides of stack direction, at the medial surface of above-mentioned side plate, form the groove that extends and be convex along the vertical direction in the outside.
3. layered heat exchanger as claimed in claim 1 is characterized in that: part is provided with the through hole of discharging condensed water below above-mentioned side plate at least.
4. layered heat exchanger as claimed in claim 3 is characterized in that: above-mentioned through hole has several.
5. layered heat exchanger as claimed in claim 1, it is characterized in that: with the plate of two drawings to being connected into flat tube, alternately multilayer is stacked with this flat tube and corrugated fin, on the flat part of corrugated fin, the direction that flows along air forms many louvers slit, this louver slit is provided with the non-louver slit forming section of part and is separated into some louvers slit group, under the state that the fluid passage above-below direction of above-mentioned flat tube is separated, outer surface at this flat tube forms the spaced trenches of protruding towards the fluid passage side, the non-louver slit forming section of above-mentioned corrugated fin and the corresponding configuration of the above-mentioned spaced trenches of flat tube.
6. layered heat exchanger as claimed in claim 1, it is characterized in that: with a pair of forming board to being connected into flat tube, this end to forming board is provided with the gateway slot part of fluid, and be provided with at least one along the vertical direction groove on the central part outer surface of fluid passage forming, with this flat tube and corrugated fin alternative stacked, above-mentioned groove forms condensed water and discharges groove between flat tube outer surface and corrugated fin, form recess on any a slice plate of above-mentioned a pair of forming board, this concave depth can touch the inner face of another sheet plate.
7. layered heat exchanger as claimed in claim 1, it is characterized in that: with a pair of forming board to being connected into flat tube, this end to forming board is provided with the gateway slot part of fluid, and be provided with at least one along the vertical direction groove on the central part outer surface of fluid passage forming, with this flat tube and corrugated fin alternative stacked, above-mentioned groove forms condensed water and discharges groove between flat tube outer surface and corrugated fin, facing to above-mentioned groove position being cut apart by corrugated fin, the cutting part of this corrugated fin and above-mentioned channel shaped become condensed water and discharge groove.
8. layered heat exchanger as claimed in claim 1, it is characterized in that: with a pair of forming board to being connected into flat tube, this end to forming board is provided with the gateway slot part of fluid, and be provided with at least one along the vertical direction groove on the central part outer surface of fluid passage forming, with this flat tube and corrugated fin alternative stacked, above-mentioned groove forms condensed water and discharges groove between flat tube outer surface and corrugated fin, width at flat tube is provided with some above-mentioned grooves, and the width of each bar groove broadens toward downstream side gradually from the upstream side of air stream.
Applications Claiming Priority (9)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP231186/92 | 1992-08-31 | ||
| JP231187/1992 | 1992-08-31 | ||
| JP231187/92 | 1992-08-31 | ||
| JP23118692A JPH0674602A (en) | 1992-08-31 | 1992-08-31 | Laminated heat exchanger |
| JP23118792A JPH0674679A (en) | 1992-08-31 | 1992-08-31 | Lamination type heat exchanger |
| JP231186/1992 | 1992-08-31 | ||
| JP271567/92 | 1992-10-09 | ||
| JP27156792A JPH06123590A (en) | 1992-10-09 | 1992-10-09 | Tacked type heat exchanger |
| JP271567/1992 | 1992-10-09 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1084961A CN1084961A (en) | 1994-04-06 |
| CN1065043C true CN1065043C (en) | 2001-04-25 |
Family
ID=27331736
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN931170745A Expired - Lifetime CN1065043C (en) | 1992-08-31 | 1993-08-30 | Layered heat exchanger |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US5443116A (en) |
| EP (2) | EP0588117B1 (en) |
| CN (1) | CN1065043C (en) |
| AU (2) | AU668403B2 (en) |
| DE (2) | DE59310250T2 (en) |
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| AUPN697995A0 (en) * | 1995-12-04 | 1996-01-04 | Urch, John Francis | Metal heat exchanger |
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| FR2748100B1 (en) * | 1996-04-30 | 1998-06-05 | Valeo Climatisation | STACKED PLATE HEAT EXCHANGER, ESPECIALLY EVAPORATOR FOR AIR CONDITIONING CIRCUIT |
| JP3576329B2 (en) * | 1996-09-09 | 2004-10-13 | 三菱重工業株式会社 | Stacked heat exchanger |
| DE19719263C2 (en) * | 1997-05-07 | 2002-04-25 | Valeo Klimatech Gmbh & Co Kg | Flat tube evaporator with vertical longitudinal direction of the flat tubes in motor vehicles |
| FR2783045B1 (en) * | 1998-09-04 | 2000-11-24 | Valeo Climatisation | MULTI-CIRCUIT HEAT EXCHANGER, PARTICULARLY FOR MOTOR VEHICLES |
| CA2260890A1 (en) * | 1999-02-05 | 2000-08-05 | Long Manufacturing Ltd. | Self-enclosing heat exchangers |
| US6439300B1 (en) | 1999-12-21 | 2002-08-27 | Delphi Technologies, Inc. | Evaporator with enhanced condensate drainage |
| FR2811416B1 (en) * | 2000-07-05 | 2003-04-18 | Const Aero Navales | TWO-WAY FLOW FLOW TYPE HEAT EXCHANGER |
| JP4605925B2 (en) * | 2001-03-08 | 2011-01-05 | サンデン株式会社 | Laminate heat exchanger |
| DE10153877A1 (en) | 2001-11-02 | 2003-05-15 | Behr Gmbh & Co | Heat exchanger |
| CA2381214C (en) | 2002-04-10 | 2007-06-26 | Long Manufacturing Ltd. | Heat exchanger inlet tube with flow distributing turbulizer |
| US20040003916A1 (en) * | 2002-07-03 | 2004-01-08 | Ingersoll-Rand Energy Systems, Inc. | Unit cell U-plate-fin crossflow heat exchanger |
| FR2867845B1 (en) * | 2004-03-16 | 2007-04-20 | Valeo Climatisation | HEAT EXCHANGER TUBES PROMOTING CONDENSATE DRAINAGE |
| US7320360B2 (en) * | 2004-11-12 | 2008-01-22 | Delphi Technologies, Inc. | One-shot brazed aftercooler with hollow beam reinforced mounting feature |
| US8037929B2 (en) * | 2004-12-16 | 2011-10-18 | Showa Denko K.K. | Evaporator |
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| EP2757336B1 (en) * | 2013-01-18 | 2017-11-08 | Robert Bosch Gmbh | Heat exchanger with optimised heat transmission and heating device with such a heat exchanger |
| CA2955854A1 (en) * | 2014-07-21 | 2016-01-28 | Dana Canada Corporation | Heat exchanger with flow obstructions to reduce fluid dead zones |
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| CN105627592A (en) * | 2014-10-27 | 2016-06-01 | 彭岫麟 | Solar heat collector and manufacturing method thereof |
| EP3411648A4 (en) | 2016-02-03 | 2019-10-09 | Modine Manufacturing Company | HEAT EXCHANGER WITH PLATES FOR BATTERY COOLING, AND PLATE ASSEMBLY |
| FR3051723A1 (en) * | 2016-05-26 | 2017-12-01 | Valeo Systemes Thermiques | HOUSING FOR A HEATING SYSTEM, VENTILATION AND / OR AIR CONDITIONING OF A MOTOR VEHICLE |
| CN107747801A (en) * | 2017-06-05 | 2018-03-02 | 梁世欢 | Sensible air heat exchanger |
| CN108645269A (en) * | 2018-04-27 | 2018-10-12 | 无锡鑫盛换热器科技股份有限公司 | A kind of stacked heat exchanger of new type water cooling |
| CN108844385B (en) * | 2018-06-15 | 2024-02-13 | 江苏英杰铝业有限公司 | Aluminum profile with good heat dissipation effect |
| CN109682231A (en) * | 2018-12-24 | 2019-04-26 | 上海加冷松芝汽车空调股份有限公司 | A kind of air-conditioning cold wind core |
| CN110500814B (en) * | 2019-07-02 | 2021-04-30 | 江苏远卓设备制造有限公司 | Plate-type evaporator |
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-
1993
- 1993-08-24 AU AU44813/93A patent/AU668403B2/en not_active Ceased
- 1993-08-25 DE DE59310250T patent/DE59310250T2/en not_active Expired - Lifetime
- 1993-08-25 EP EP93113574A patent/EP0588117B1/en not_active Expired - Lifetime
- 1993-08-25 US US08/113,054 patent/US5443116A/en not_active Expired - Lifetime
- 1993-08-25 EP EP95119487A patent/EP0709640B1/en not_active Expired - Lifetime
- 1993-08-25 DE DE69316121T patent/DE69316121T2/en not_active Expired - Fee Related
- 1993-08-30 CN CN931170745A patent/CN1065043C/en not_active Expired - Lifetime
-
1995
- 1995-08-08 AU AU28441/95A patent/AU676116B2/en not_active Ceased
Also Published As
| Publication number | Publication date |
|---|---|
| EP0709640B1 (en) | 2001-12-12 |
| AU4481393A (en) | 1994-03-10 |
| DE59310250T2 (en) | 2002-10-10 |
| AU676116B2 (en) | 1997-02-27 |
| CN1084961A (en) | 1994-04-06 |
| DE69316121D1 (en) | 1998-02-12 |
| US5443116A (en) | 1995-08-22 |
| DE59310250D1 (en) | 2002-01-24 |
| EP0588117B1 (en) | 1998-01-07 |
| EP0709640A2 (en) | 1996-05-01 |
| EP0588117A1 (en) | 1994-03-23 |
| EP0709640A3 (en) | 1997-10-29 |
| AU668403B2 (en) | 1996-05-02 |
| AU2844195A (en) | 1995-10-12 |
| DE69316121T2 (en) | 1998-04-16 |
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Expiration termination date: 20130830 Granted publication date: 20010425 |
